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CN109109678A - Charging system for electric vehicle - Google Patents

Charging system for electric vehicle Download PDF

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Publication number
CN109109678A
CN109109678A CN201810628420.2A CN201810628420A CN109109678A CN 109109678 A CN109109678 A CN 109109678A CN 201810628420 A CN201810628420 A CN 201810628420A CN 109109678 A CN109109678 A CN 109109678A
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CN
China
Prior art keywords
storage device
charging
power
thermal
charging system
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810628420.2A
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Chinese (zh)
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CN109109678B (en
Inventor
S·戈茨
M·格罗斯
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of CN109109678A publication Critical patent/CN109109678A/en
Application granted granted Critical
Publication of CN109109678B publication Critical patent/CN109109678B/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/302—Cooling of charging equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/67—Controlling two or more charging stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

一种用于电动车的充电系统(10)，具有：充电桩(12)，电动车牵引电池可通过充电电缆(13)被连接至充电桩；功率电子装置(16)，充电桩(12)在插入有功率电子装置(16)情况下可连接至提供限定的电网功率的电流电压供电电网(14)；蓄电装置(18)，其接设在电流电压供电电网(14)与充电桩(12)之间，其可根据电网功率充电且根据充电桩(12)的充电速度放电；中间冷却装置(19)，充电桩(12)、功率电子装置(16)和蓄电装置(18)连接至提供限定的中间冷却热功率的中间冷却装置(19)；蓄热装置(20)，其与中间冷却装置(19)、充电桩(12)、功率电子装置(16)和蓄电装置(18)连接，该蓄热装置或其冷却介质可被加热或被冷却。

A charging system (10) for an electric vehicle, comprising: a charging pile (12), to which an electric vehicle traction battery can be connected via a charging cable (13); a power electronic device (16), a charging pile (12) Connectable to a current and voltage supply grid (14) providing a defined grid power when a power electronics device (16) is inserted; an electrical storage device (18), which is connected to the current and voltage supply grid (14) and a charging point (14). 12), it can be charged according to the grid power and discharged according to the charging speed of the charging pile (12); the intermediate cooling device (19), the charging pile (12), the power electronic device (16) and the power storage device (18) are connected to an intercooling device (19) providing a defined intercooling thermal power; a thermal storage device (20) in combination with the intercooling device (19), the charging pile (12), the power electronics (16) and the electrical storage device (18) ) connection, the thermal storage device or its cooling medium can be heated or cooled.

Description

Charging system for electric vehicle
Technical field
The present invention relates to the charging systems for electric vehicle.
Background technique
Charging for electric vehicle, especially for the charging of electric vehicle traction battery, it is known that so-called AC charging mould Formula and so-called DC charging mode.
In AC charging mode, electric vehicle is connected to electric current and power voltage supply power grid by its onboard charger, should Power grid provides alternating voltage or alternating current, and wherein the onboard charger goes to the conversion of DC current.It is filled in so-called exchange In power mode, the charging rate of traction battery is limited.Charging time in AC charging mode is that every 100 kilometers of strokes want multiple Hour.
By DC charging mode, it can be compared quick electric vehicle traction battery charging, in this case, In DC charging mode, traction battery is not to be charged by the onboard charger of electric vehicle, and be performed such charging, that is, Traction battery is connected directly to off-board recharging stake in the case where bypassing onboard charger, and charging pile provides DC current to fill Electrical haulage battery.Using DC charging mode, charging rate more higher than AC charging mode may be implemented, but so far in direct current It is not possible to accomplish to provide the number of refueling process in conventional truck driven by the internal combustion engine to electric vehicle traction battery in charge mode The charging rate of magnitude.
The heretofore known charging system of electric powercar for electric vehicle traction battery DC charging not can guarantee correspondingly high Charging rate, this is because being on the one hand possible to simultaneously insufficient by the grid power that available Current Voltage power supply grid provides To provide desired charging rate, and on the other hand in the feelings in view of also occurring high loss under high charge speed conditions Cause largely to generate heat when condition, and these heat can not be adequately dissipated.
A kind of charging system of electric powercar with multiple charging piles is disclosed by 2 572 431B1 of EP.In each charging pile Can charge the traction battery of an electric vehicle in region, here, in each charging pile region, the traction battery of each electric vehicle Each charging pile can be connected to by charging cable.The charging system of 2 572 431B1 of EP is also equipped with to be converted including multiple power The power electric device of device, for the grid power provided by Current Voltage power supply grid conversion to be used for electric vehicle traction battery Charging.
By disclosing another charging system of electric powercar in 2 986 468B1 of EP.A kind of charging pile is disclosed, electricity Motor-car traction battery can be connected to the charging pile by the charging cable of charging pile.Electric vehicle traction battery by charging pile by being mentioned The radiator of confession can be cooled, specifically by means of the contact surface of the radiator thermal conductive contact traction battery of charging pile.
Therefore, it is necessary to a kind of charging system of electric powercar, in terms of the electricity and in terms of heat permission electric vehicle with high charge speed or Especially charge more than the charge power of 300kW/ vehicle.
Summary of the invention
The task is completed by the technical solution of the charging system for electric vehicle of one kind following 1.Following 2-14 are Optimal technical scheme:
1. a kind of charging system (10) for electric vehicle, comprising:
The traction battery of at least one charging pile (12), electric vehicle can be by the charging cable (13) of each charging pile (12) even It is connected to the charging pile,
Power electric device (16), wherein inserted with power electric device (16), each charging pile (12) it can be connected to and the Current Voltage power supply grid (14) of the grid power limited is provided,
It is characterized in that,
At least one electrical storage device (18), the electrical storage device are connected the Current Voltage power supply grid as follows (14) between each charging pile (12), that is, so that
The electrical storage device can be electrically charged according to the grid power of the Current Voltage power supply grid (14) and can be according to the function The charging rate of rate electronic device (16) and each charging pile (12) is discharged；
Intercooler unit (19), each charging pile (12), the power electric device (16) and described or each electrical storage device (18) it is connected to and the intercooler unit (19) of the cooling during rolling thermal power limited is provided；
At least one regenerative apparatus (20), the regenerative apparatus are filled with the intercooler unit (19), respectively as follows Electric stake (12), the power electric device (16) and described or each electrical storage device (18) connection, that is, so that
The cooling medium of the regenerative apparatus or the regenerative apparatus can be according to the power electric device (16), each charging pile (12) It is heated with the loss power of each electrical storage device (18) and according to the cooling during rolling thermal power quilt of the intercooler unit (19) It is cooling.
2. the charging system according to above-mentioned 1, which is characterized in that described or each electrical storage device (18) and described or every A regenerative apparatus (20) is mutually matched for its respectively dynamic.
3. the charging system according to above-mentioned 1 or 2, which is characterized in that for described or each regenerative apparatus (20) The cooling during rolling thermal power of the intercooler unit (19) so adapts to the grid power of the Current Voltage power supply grid (14), That is, the charging of the electrical storage device (18) and the centre of the regenerative apparatus (19) is cold after the charging process of electric vehicle traction battery It is to be carried out in a period of restriction.
4. the charging system according to above-mentioned 3, which is characterized in that the charging of the electrical storage device (18) and led in electric vehicle The cooling during rolling for drawing the regenerative apparatus (20) after the charging process of battery is carried out with identical speed.
5. the charging system according to one of above-mentioned 1 to 4, which is characterized in that described or each electrical storage device (18) and Described or each regenerative apparatus (19) is mutually matched for its each self-capacity.
6. the charging system according to one of above-mentioned 1 to 5, which is characterized in that described or each electrical storage device (18) Capacitance and the thermal capacity of described or each regenerative apparatus (20) are so mutually matched, that is, for the restriction number of traction battery Charging process, the electrical storage device provide needed for rechargeable energy, and the regenerative apparatus provide needed for cooling energy.
7. the charging system according to above-mentioned 5 or 6, which is characterized in that the capacitor of described or each electrical storage device (18) Amount designs also in the maximized situation of service life of the electrical storage device (18).
8. the charging system according to one of above-mentioned 5 to 7, which is characterized in that described or each electrical storage device (18) Capacitance also designs the case where considering the power supply stability of the Current Voltage power supply grid (14).
9. the charging system according to one of above-mentioned 5 to 8, which is characterized in that described or each regenerative apparatus (20) Thermal capacity is designed also according to the ambient temperature effect of charging system.
10. the charging system according to one of above-mentioned 1 to 9, which is characterized in that described or each electrical storage device (18) The cooling during rolling thermal power of capacitance, described or each regenerative apparatus (20) the thermal capacity and the intercooler unit is for logical It crosses experience or counts the charging process number of identified unit time and each filled for by the way that experience or statistics are identified The rechargeable energy of electric process designs.
11. the charging system according to one of above-mentioned 1 to 10, which is characterized in that described or each electrical storage device (18) It is so mutually matched with described or each regenerative apparatus (20), that is, the thermal capacity that corresponds to of the regenerative apparatus (20) permits with maximum Perhaps the thermal energy of the raised product of temperature is sufficient for the same number that the electrical storage device (18) is capable of providing based on its electric flux The charging process of amount.
12. the charging system according to one of above-mentioned 1 to 11, which is characterized in that described or each regenerative apparatus (20) Can be by heat exchanger (30) by cooling during rolling for intercooled available cooling medium, which, which is integrated into, leads to the storage In the return line (29) of thermal (20), and the heat exchanger is preferably provided with ventilation blower (31).
13. the charging system according to one of above-mentioned 1 to 12, which is characterized in that described or each regenerative apparatus (20) It can be by compressor of air conditioner (32) by cooling during rolling for intercooled available cooling medium.
14. the charging system according to one of above-mentioned 1 to 13, which is characterized in that by means of the intercooler unit (19) and described or each regenerative apparatus (20), the power electric device (16), described or each electrical storage device (18) and institute It states or the charging cable (13) of each charging pile (12) can be cooled.
The charging system includes at least one electrical storage device, be connected Current Voltage power supply grid and each charging pile it Between, thus the electrical storage device can be electrically charged according to the grid power of Current Voltage power supply grid and according to power electric device and The charging rate of each charging pile is discharged.
The charging system further includes at least one intercooler unit, wherein each charging pile, power electric device and institute It states or each electrical storage device is connected to and provides the intercooler unit of the cooling during rolling thermal power limited.
The charging system further includes at least one regenerative apparatus, and regenerative apparatus so charges with intercooler unit, respectively Stake, power electric device are connected with described or each electrical storage device, that is, regenerative apparatus or its cooling medium can be according to described The loss power of power electric device, each charging pile and each electrical storage device is heated and according in the intercooler unit Between cooling thermal power it is cooled.
Charging system of the invention includes at least one electrical storage device and at least one regenerative apparatus.
Described or each electrical storage device can connect to Current Voltage power supply grid and be charged by it, be Specifically to take Certainly charge in the charging rate of the grid power of the Current Voltage power supply grid.In order to which the traction battery to motor vehicle charges, The electric energy being stored in electrical storage device can be called, so as to preferably in a manner of Current Voltage power supply grid auxiliary from the storage Electric installation is being higher than and can charge under the speed that Current Voltage power supply grid charges to electrical storage device to traction battery.
Charge power more than 300kW/ vehicle can be especially provided by electrical storage device.High charge may be implemented whereby Speed.
The loss heat occurred under electric vehicle charge power high in this way can be disappeared by described or each regenerative apparatus It dissipates, does not allow ground height to generate heat with prevent such as power electric device or each charging pile or each electrical storage device.
Dissipating for the heat absorbed by regenerative apparatus is then carried out by providing the intercooler unit of cooling during rolling power, with Just cooling medium used in the regenerative apparatus or regenerative apparatus is cooled down.
As soon as its is each automatic for described or each electrical storage device and described or each regenerative apparatus according to a favourable improvement scheme It is mutually matched for state.The matching for its dynamic of electrical storage device and regenerative apparatus is charged for providing efficient electric vehicle System is especially preferred.It can be charged with sufficiently high charging rate to more electric vehicles.
The cooling during rolling thermal power of described or each regenerative apparatus preferably so adapts to the electricity of Current Voltage power supply grid Net power, that is, the on the one hand charging of the electrical storage device and the on the other hand storage after the charging process of electric vehicle traction battery The cooling during rolling of thermal was carried out within the period of restriction.This can especially advantageously provide a kind of efficient electric vehicle charging System.It can be charged with sufficiently high charging rate to more electric vehicles.
Described or each electrical storage device and described or each regenerative apparatus are preferably mutually matched for its each self-capacity.
In this regard, the capacitance of described or each electrical storage device and the preferably such phase of the thermal capacity of described or each regenerative apparatus Mutually matching, that is, for the charging process of the restriction number of traction battery, rechargeable electrical energy needed for electrical storage device offer, and accumulation of heat Device provides required cooling energy.
The capacity matching of electrical storage device and regenerative apparatus is especially advantageous for providing efficient charging system.It can be sufficient Enough high charging rates are come the more electric vehicles that charge.
Electrical storage device service life is preferably also being maximized and/or is being considered by the capacitance of described or each electrical storage device The case where grid stability of Current Voltage power supply grid, gets off design.In the case where considering these boundary conditions, Ke Yijin The efficiency of one step raising charging system.
The thermal capacity of the described or each regenerative apparatus of the charging system is preferably also according to charging system ambient temperature effect To design.Further increasing for charging system efficiency also may be implemented in the case where considering the boundary condition, because can use up Amount reduces the cooling during rolling power that the needs of intercooler unit maintain.
The capacitance of the described or each electrical storage device of the charging system and the described or each accumulation of heat of the charging system fill The cooling during rolling thermal power preferred pin of the intercooler unit of the thermal capacity set and the charging system to pass through experience or statistics The charging process number of identified unit time and by experience or statistics determined by every time charging process rechargeable energy To design.It is purposefully required for locality it is possible thereby to realize to design charging system.It is possible thereby to provide a kind of high Imitate economic charging system.
According to a favourable improvement scheme, the described or each electrical storage device of the charging system and the charging system it is described Or each regenerative apparatus is so mutually matched, that is, regenerative apparatus corresponds to thermal capacity and the raised product of maximum allowable temperature Thermal energy be sufficient for the charging process of the equivalent amount that the electrical storage device is capable of providing based on its electric flux.The details For providing a kind of efficient charging system, multiple electric vehicles can be electrically charged on the charging system with high charge speed.
According to a favourable improvement scheme, by intercooler unit, the power electric device and described or each electric power storage The charging cable of device and described or each charging pile can be cooled.The cooling of charging pile charging cable is especially advantageous, The loss occurred in the case where to be effectively dissipated in high charge power or charging rate is hot and excludes the overheat of charging cable.
Detailed description of the invention
By obtaining advantageous modification of the invention in above-mentioned 2-14 and following explanation.It is described in detail in conjunction with attached drawing of the invention Embodiment, however, the present invention is not limited thereto.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the charging system according to the present invention for electric vehicle；
Fig. 2 shows the figures of the charging system design details for explanatory diagram 1；
Fig. 3 shows the details of the charging system of Fig. 1；And
Fig. 4 shows an optional details of substitution of the charging system of Fig. 1.
Specific embodiment
The present invention relates to the charging systems for electric vehicle.Such charging system is also referred to as charging station.
Fig. 1 very schematically shows the principle knot of the charging system 10 according to the present invention for electric vehicle 11 Structure.Charging system 10 has multiple charging piles 12 for electric vehicle, wherein in particular by the charging by each charging pile 12 The traction battery of electric vehicle 11 is connected to charging pile 12 by cable 13, in the region of each charging pile 12 of also referred to as charging column Can be charged an electric vehicle 11 respectively.
Fig. 1 shows two electric vehicles 11, they are connected to each charging pile 12 by charging cable 13.
Charging system 10 can be able to supply voltage or electric current, Current Voltage power supply grid from Current Voltage power supply grid 14 Transformer 15 be shown.Here, the feature of Current Voltage power supply grid 14 is the grid power limited, the power grid function of the restriction It rate and sets up place and has relatively been predetermined boundary condition.
In heretofore known charging system, charging rate or charge power for electric vehicle 11 limitedly depend on electricity The grid power of galvanic electricity pressure power supply grid 14.
Charging system 10 for electric vehicle is also equipped with power electric device 16, in the embodiment shown in fig. 1 by two A power electric device module 17 provides, they prepare a power converter for each charging pile 12.
Each charging pile 12 of charging system 10 is mentioned in centre connection power electric device 16 or by power electric device 16 Current Voltage power supply grid 14 can be connected or is connected in the case of the power converter of confession.
Charging system 10 for electric vehicle has at least one electrical storage device 18.
Each electrical storage device 18 of charging system 10 is connected to Current Voltage power supply grid 14 and charging system as follows It is connected between 10 each charging pile 12 and in turn between the power electric device 16 of charging system 10: each electrical storage device 18 It can be electrically charged according to the grid power of Current Voltage power supply grid 14 and according to the function when electric vehicle traction battery charges The charging rate of rate electronic device 16 or each charging pile 12 can be discharged.
Here, limit of the charging rate that electrical storage device 18 can be given to charge from Current Voltage power supply grid 14 by grid power System and the charging rate for being lower than each charging pile 12 for the charging of electric vehicle traction battery, to allow electric vehicle 11, (i.e. it is drawn Battery) can with than being only electrically charged by the achievable higher charging rate of Current Voltage power supply grid 14 and charge power, In this case, the charge power of each car is preferably greater than 300kW.
Charging system 10 is also equipped with intercooler unit 19 and at least one regenerative apparatus 20.
Intercooler unit 19 provides to cool down each charging pile 12 and power electric device 16 and electrical storage device 18 The cooling during rolling thermal power of restriction.
In being not exposed to for the heat that can be scattered away in 18 region of charging pile 12, power electric device 16 and electrical storage device Between cooling device 19 cooling during rolling thermal power limitation, charging system 10 further includes at least one regenerative apparatus 20.
Regenerative apparatus 20 herein with intercooler unit 19, each charging pile 12, power electric device 16 and each electrical storage device 18 are connected, thus the loss of regenerative apparatus 20 or its cooling medium according to the loss power, charging pile 12 of power electric device 16 The loss power of power and electrical storage device 18 can be heated and according to the cooling during rolling thermal power of intercooler unit 19 It can be cooled.
In the shown embodiment, it for all charging piles 12, is shared equipped with a shared electrical storage device 18 and one Regenerative apparatus 20.It is also possible that multiple electrical storage devices 18 and multiple regenerative apparatus 20 are equipped with, thus for example respectively for one A shared electrical storage device and a shared regenerative apparatus 20 is arranged in group charging pile 12.
Therefore described or each electrical storage device 18 allows to compensate the perhaps temporarily too low electricity of Current Voltage power supply grid 14 Net power.Relatively slow charging of the electrical storage device 18 from Current Voltage power supply grid 14 is carried out herein, and once electric vehicle I.e. electric vehicle traction battery charges on a charging pile 12, then carries out the repid discharge of electrical storage device.Electricity is drawn in electric vehicle When pond is charged, Current Voltage power supply grid 14 is preferred to support electrical storage device 18.
By regenerative apparatus 20, the cooling during rolling power maintained by component cooling system 19 can reduce, therefore to set Determine the component cooling system 19 of small size and reduces cost related to this.
As soon as it is each for described or each electrical storage device 18 and described or each regenerative apparatus 20 according to a favourable improvement scheme It is mutually matched from dynamic and/or for its each self-capacity.It is preferred that the dynamic and capacity and then described or each electrical storage device 18 and described or each regenerative apparatus 20 savings ability is mutually matched.It is particularly likely to thus, makes available cooling Thermal power is matched with available charge power.Described or each electrical storage device 18 can be under the support of Current Voltage power supply grid Charging process of the electric energy for the traction battery of electric vehicle 11 is provided.Described or each regenerative apparatus 20 is in component cooling system 19 With the help of for absorb and dissipate occur during the charging process loss heat.
It is preferred that providing, intercooler unit 19 is directed to the cooling during rolling thermal power of described or each offer of regenerative apparatus 20 such as Under be matched with describedly for described or each electrical storage device 18 charging Current Voltage power supply grid grid power: on the one hand It is the charging of electrical storage device 18 and is on the other hand regenerative apparatus 20 after the traction battery charging process of electric vehicle 11 Cooling during rolling is carried out during restriction.This is preferred for the charging dynamic of charging system and cooling dynamic matching 's.
It especially provides at this time, is on the one hand the charging of electrical storage device 18 and is on the other hand traction battery in electric vehicle 11 Charging process after regenerative apparatus 20 cooling during rolling with identical speed progress.This for charging system charging dynamic It is particularly preferred with cooling dynamic matching.
In addition, the capacity of savings device 18,19, i.e. described in or each electrical storage device 18 capacitance and described or each storage The thermal capacity of thermal 20 is mutually matched.
The capacitance of described or each electrical storage device 18 and the thermal capacity of described or each regenerative apparatus 20 are preferably with as follows Mode is mutually matched: for the charging process of the restriction number of the traction battery of electric vehicle 11, by described or each electrical storage device 18 provide required rechargeable energy, and provide required cooling energy by described or each regenerative apparatus 20.
Especially it is particularly preferred that the heat of the capacitance of described or each electrical storage device 18 and described or each regenerative apparatus 20 The cooling during rolling thermal power of capacity and intercooler unit 19 is directed to the charging by experience or the statistics calculated unit time It process number and is designed by the rechargeable energy of the calculated each charging process of experience or statistics, to be matched with Charging System sets up place and with setting up place specific border the condition freedom degree of optimal design charging system, i.e., described or each electric power storage The centre of the size or capacity of device 18, described or each regenerative apparatus 20 the size or capacity and intercooler unit 19 is cold But power.
The grid power of Current Voltage power supply grid 14 is set and is considered as boundary condition.In addition, as described above, passing through The charging process number of unit time calculated by statistics or experience is to pass through charge frequency calculated by experience or statistics, pass through Rechargeable energy needed for each charging process calculated by experience or statistics, the charge point quantity of charging system and charging every time The expectation of process or scheduled charge power and between charging process acceptable predetermined waiting time be used as design when want The boundary condition paid attention to.
The freedom degree being mutually matched that extremely schematically t shows charging system at any time in Fig. 2 designs, i.e. savings dress Set the design of 18,19 capacity and the cooling during rolling power of intercooler unit.Therefore, the curvilinear motion 21 of Fig. 2 is shown The charged state of electrical storage device 18, curvilinear motion 22 show the heat absorption capacity of regenerative apparatus 20.
The stage 23 of Fig. 2 shows charged state 21 in a charging process of traction battery and heat absorption capacity 22 Change procedure.The stage 24 of Fig. 2 shows during savings device 18,20 restores after traction battery charging process terminates Charged state 21 and heat absorption capacity 22.In the stage 25 of Fig. 2, the charged state 21 of electrical storage device 18 and the suction of regenerative apparatus 20 Thermal energy power 22 is shown for following situations: it does not both carry out charging process at this time, does not also need the recovery of savings device 18,20, That is, electrical storage device 18 is fully charged and the complete heat absorption capacity of regenerative apparatus 20 is available again.
The electrical power of the charging system is at least matched with according to time average to be adjusted in the charging of electric vehicle traction battery Power.The cooling during rolling power of intercooler unit 19 is so designed, that is, is gone out in the charging of electric vehicle traction battery Existing loss heat is dissipated according to time averaging mode.Reservoir 18,20 allows to extend the time cycle being averaged.
The maximization that 18 service life of electrical storage device is preferably considered when designing the capacity of electrical storage device 18, specifically leads to It crosses and the charging stroke of electrical storage device 18 and electric discharge stroke is maintained in specified limits.Furthermore it is preferred that being designed in electrical storage device 18 When consider Current Voltage power supply grid 14 grid stability.
If designing electric power storage thus due to setting up place and there are the probabilities of malfunction of high Current Voltage power supply grid 14 The capacitance of device 18.In addition, when determining the capacity of electrical storage device 18, not only it is contemplated that Current Voltage power supply grid 14 Stability, it is also contemplated that the energy that can be provided by Current Voltage power supply grid 14 by other boundary conditions, which may Depending on time, season, working day, cost of energy of variation etc..Data related to this can be found out by experience and It is taken in the design by Poisson distribution or logarithm normal distribution.
When determining the thermal capacity of regenerative apparatus 20, the environmental condition of charging system can be evaluated, such as filled The environment temperature in electric system region.
Fig. 3 shows the thin of the charging system 10 in 20 region of regenerative apparatus to interact with intercooler unit 19 Section.Fig. 3 shows the regenerative apparatus 20 with available cooling medium, in order to cool down component 27 to be cooled, the cooling medium It is removed from savings device 20 by pump 26 via intake line 28, to be sent to component 27 to be cooled, and the cooling is situated between Matter is after component 27 is cooling in the case where first passing through intercooler unit 19 being mounted in return line 29 via return pipe Road 29 is sent back to regenerative apparatus 20, and intercooler unit includes the heat exchange to interact with ventilation blower 31 in the embodiments of figure 3 Device 30.
In Fig. 3, ventilation blower 31 is for limiting via the conveying of heat exchanger 30 with for cooling air capacity, to be sent The cooling medium of the cooling heating conveyed via return line 29 before entering regenerative apparatus 20.Component 27 can be power electronic dress Set the component of 16, electrical storage device 18 or charging column 12.As previously mentioned, there is all components i.e. power electric device 16 of thermal losses Component, the component of electrical storage device 18 and the component of charging pile 12 and especially its charging cable 13 it is cooled.
Fig. 4 shows the improvement project of the details of Fig. 3, here, being equipped in being used as other than heat exchanger 30 and ventilation blower 31 Between cooling device 19 other components compressor of air conditioner 32.It is cooling to be situated between via such compressor of air conditioner 32 compared to Fig. 3 Matter can be cooled to below environment temperature.In this case, heat exchanger 30 can be saved when using compressor of air conditioner 32 With ventilation blower 31.Then, when intercooler unit 19 is using both heat exchanger 30 and compressor of air conditioner 32 and in return line When the temperature of cooling medium in 29 is lower than environment temperature, ventilation blower 31 can be turned off.However, if in return line 29 The reflux temperature of cooling medium is higher than environment temperature, then ventilation blower 31 can be switched on, so as to cooling in 30th area of heat exchanger It cooling medium in domain and subsequently ensures that lower than environment temperature further cooling by compressor of air conditioner 32.

Claims (14)

1.一种用于电动车的充电系统(10)，具有：1. A charging system (10) for an electric vehicle, comprising: 至少一个充电桩(12)，电动车的牵引电池能通过各充电桩(12)的充电电缆(13)连接至该充电桩，at least one charging pile (12), the traction battery of the electric vehicle can be connected to the charging pile through the charging cable (13) of each charging pile (12), 功率电子装置(16)，其中在插入有该功率电子装置(16)的情况下，每个充电桩(12)能被连接至提供限定的电网功率的电流电压供电电网(14)，Power electronics (16), wherein, with the power electronics (16) inserted, each charging post (12) can be connected to a current-voltage supply grid (14) providing a defined grid power, 其特征在于，It is characterized in that, 至少一个蓄电装置(18)，该蓄电装置以如下方式被连接在该电流电压供电电网(14)与各充电桩(12)之间，即，使得At least one power storage device (18), which is connected between the current-voltage supply grid (14) and the charging piles (12) in such a way that 该蓄电装置能根据该电流电压供电电网(14)的电网功率被充电并且能根据该功率电子装置(16)和各充电桩(12)的充电速度被放电；The power storage device can be charged according to the grid power of the current and voltage supply grid (14) and can be discharged according to the charging speed of the power electronic device (16) and the charging piles (12); 中间冷却装置(19)，各充电桩(12)、该功率电子装置(16)和所述或每个蓄电装置(18)被连接至提供限定的中间冷却热功率的该中间冷却装置(19)；an intercooling device (19) to which each charging pile (12), the power electronics (16) and the or each electrical storage device (18) are connected providing a defined intercooling thermal power ); 至少一个蓄热装置(20)，该蓄热装置以如下方式与所述中间冷却装置(19)、各充电桩(12)、所述功率电子装置(16)和所述或每个蓄电装置(18)连接，即，使得At least one thermal storage device (20) connected to said intercooling device (19), each charging pile (12), said power electronic device (16) and said or each electrical storage device in the following manner (18) Connect, that is, such that 该蓄热装置或该蓄热装置的冷却介质能根据该功率电子装置(16)、各充电桩(12)和各蓄电装置(18)的损耗功率被加热并且根据该中间冷却装置(19)的中间冷却热功率被冷却。The thermal storage device or the cooling medium of the thermal storage device can be heated according to the power losses of the power electronics ( 16 ), the charging points ( 12 ) and the electrical storage devices ( 18 ) and can be heated according to the intermediate cooling device ( 19 ) The intercooling thermal power is cooled. 2.根据权利要求1所述的充电系统，其特征在于，所述或每个蓄电装置(18)和所述或每个蓄热装置(20)就其各自动态而言相互匹配。2 . The charging system according to claim 1 , wherein the or each electrical storage device ( 18 ) and the or each thermal storage device ( 20 ) are matched to each other with regard to their respective dynamics. 3 . 3.根据权利要求1或2所述的充电系统，其特征在于，用于所述或每个蓄热装置(20)的该中间冷却装置(19)的中间冷却热功率如此适配于该电流电压供电电网(14)的电网功率，即，该蓄电装置(18)的充电和在电动车牵引电池的充电过程之后该蓄热装置(19)的中间冷却是在限定的期间内进行的。3. The charging system according to claim 1 or 2, characterized in that the intercooling heat power of the intercooler (19) for the or each heat storage device (20) is adapted in such a way to the current The grid power of the voltage supply grid (14), ie the charging of the electrical storage device (18) and the intercooling of the thermal storage device (19) after the charging process of the electric vehicle traction battery, takes place within a defined period. 4.根据权利要求3所述的充电系统，其特征在于，该蓄电装置(18)的充电和在电动车牵引电池的充电过程之后的该蓄热装置(20)的中间冷却是以相同的速度进行的。4. The charging system according to claim 3, characterized in that the charging of the electrical storage device (18) and the intercooling of the thermal storage device (20) after the charging process of the traction battery of the electric vehicle are identical speed. 5.根据权利要求1或2所述的充电系统，其特征在于，所述或每个蓄电装置(18)和所述或每个蓄热装置(19)就其各自容量而言相互匹配。5. The charging system according to claim 1 or 2, characterized in that the or each electrical storage device (18) and the or each thermal storage device (19) are matched to each other with regard to their respective capacities. 6.根据权利要求1或2所述的充电系统，其特征在于，所述或每个蓄电装置(18)的电容量和所述或每个蓄热装置(20)的热容量如此相互匹配，即，对于牵引电池的限定次数的充电过程，该蓄电装置提供所需的充电能量，而该蓄热装置提供所需的冷却能量。6. The charging system according to claim 1 or 2, characterized in that the electrical capacity of the or each electrical storage device (18) and the thermal capacity of the or each thermal storage device (20) are matched to each other in such a way that That is, for a limited number of charging processes of the traction battery, the electrical storage device provides the required charging energy and the thermal storage device provides the required cooling energy. 7.根据权利要求5所述的充电系统，其特征在于，所述或每个蓄电装置(18)的电容量还在该蓄电装置(18)的使用寿命最大化的情况下来设计。7. The charging system according to claim 5, characterized in that the electric capacity of the or each power storage device (18) is also designed to maximize the service life of the power storage device (18). 8.根据权利要求5所述的充电系统，其特征在于，所述或每个蓄电装置(18)的电容量还在考虑该电流电压供电电网(14)的电源稳定性的情况来设计。8. The charging system according to claim 5, characterized in that the capacitance of the or each power storage device (18) is also designed in consideration of the stability of the power supply of the current-voltage power supply grid (14). 9.根据权利要求5所述的充电系统，其特征在于，所述或每个蓄热装置(20)的热容量还根据充电系统的环境温度影响来设计。9. The charging system according to claim 5, characterized in that, the thermal capacity of the or each thermal storage device (20) is also designed according to the influence of the ambient temperature of the charging system. 10.根据权利要求1或2所述的充电系统，其特征在于，所述或每个蓄电装置(18)的电容量、所述或每个蓄热装置(20)的热容量、和该中间冷却装置的中间冷却热功率针对通过经验或统计所确定的单位时间的充电过程次数和针对通过经验或统计所确定的每个充电过程的充电能量来设计。10. The charging system according to claim 1 or 2, characterized in that the electrical capacity of the or each electrical storage device (18), the thermal capacity of the or each thermal storage device (20), and the intermediate The intercooling thermal power of the cooling device is designed for the number of charging processes per unit time determined empirically or statistically and for the charging energy per charging process determined empirically or statistically. 11.根据权利要求1或2所述的充电系统，其特征在于，所述或每个蓄电装置(18)和所述或每个蓄热装置(20)如此相互匹配，即，该蓄热装置(20)的对应于热容量与最大允许温度升高的乘积的热能量足以满足该蓄电装置(18)基于其电能量而能够提供的同等数量的充电过程。11 . The charging system according to claim 1 , wherein the or each electrical storage device ( 18 ) and the or each thermal storage device ( 20 ) are matched to each other such that the thermal storage device The thermal energy of the device (20) corresponding to the product of the thermal capacity and the maximum allowable temperature rise is sufficient for an equivalent number of charging processes that the electrical storage device (18) can provide based on its electrical energy. 12.根据权利要求1或2所述的充电系统，其特征在于，所述或每个蓄热装置(20)用于中间冷却的可用冷却介质能通过换热器(30)被中间冷却，该换热器被整合到通向该蓄热装置(20)的回流管路(29)中，并且该换热器优选配有通风机(31)。12. The charging system according to claim 1 or 2, characterized in that the or each thermal storage device (20) has a cooling medium available for intercooling which can be intercooled by means of a heat exchanger (30), which A heat exchanger is integrated into the return line (29) leading to the thermal storage device (20) and is preferably equipped with a fan (31). 13.根据权利要求1或2所述的充电系统，其特征在于，所述或每个蓄热装置(20)用于中间冷却的可用冷却介质能通过空调压缩机(32)被中间冷却。13. The charging system according to claim 1 or 2, characterized in that the or each thermal storage device (20) has an available cooling medium for intercooling which can be intercooled by an air conditioning compressor (32). 14.根据权利要求1或2所述的充电系统，其特征在于，借助于该中间冷却装置(19)和所述或每个蓄热装置(20)，所述功率电子装置(16)、所述或每个蓄电装置(18)和所述或每个充电桩(12)的充电电缆(13)能被冷却。14. The charging system according to claim 1 or 2, characterized in that, by means of the intercooling device (19) and the or each thermal storage device (20), the power electronic device (16), the The or each power storage device (18) and the charging cable (13) of the or each charging pile (12) can be cooled.
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